package uestc.lj.gulishop.cart.controller;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import uestc.lj.common.utils.R;
import uestc.lj.gulishop.cart.service.CartService;
import uestc.lj.gulishop.cart.vo.Cart;
import uestc.lj.gulishop.cart.vo.CartItem;

import java.util.List;
import java.util.concurrent.ExecutionException;

/**
 * @Author:Crazlee
 * @Date:2021/6/11
 */
@Controller
public class CartIndexController {
    @Autowired
    private CartService cartService;

    @ResponseBody
    @GetMapping("/current/user/cartItems")
    public R getCurrentCartItems() {
        List<CartItem> cartItems = cartService.getUserCartItems();

        return R.ok().put("cartItems", cartItems);
    }

    /**
     * 购物车列表页
     *
     * @return
     */
    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
        Cart cart = cartService.getCart();
        model.addAttribute("cart", cart);
        return "cartList";
    }

    /**
     * 成功添加商品到购物车
     *
     * @return
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num,
                            RedirectAttributes redirectAttributes) throws ExecutionException, InterruptedException {
        cartService.addToCart(skuId, num);
        redirectAttributes.addAttribute("skuId", skuId);
        return "redirect:http://cart.gulishop.com/addToCartSuccess.html";
    }

    /**
     * 添加成功后，跳转到成功页面，防止重复添加操作
     *
     * @param skuId
     * @param model
     * @return
     */
    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId, Model model) {

        CartItem cartItem = cartService.addToCartSuccessPage(skuId);
        model.addAttribute("item", cartItem);
        return "success";
    }

    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId, @RequestParam("check") Integer check) {
        cartService.checkItem(skuId, check);
        return "redirect:http://cart.gulishop.com/cart.html";
    }

    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num) {
        cartService.countItem(skuId, num);
        return "redirect:http://cart.gulishop.com/cart.html";
    }

    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId) {
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulishop.com/cart.html";

    }
}

